The beta-amylase (E-BARBP) is pure beta-amylase for use in the preparation of beta-limit dextrin for use in the ASBC alpha-amylase procedure.  It is not a standard.  However, it could be used as a standard if you wish to standardise it yourself.  We supply pure alpha-amylase preparations but these are not standardised to an exact activity.

Product Page - E-BARBL

Product Page - E-BARBP